Hey guys, I have what may be a stupid question here. I am adding a rotary helm steering kit and also a remote control for an outboard into an older 15' aluminum boat. Both of these units are built on (what looks like) a zinc coated steel mounting plate. What is the correct way to mount these accessories onto bare aluminum to avoid any "galvanic corrosion" troubles. How is it done on boats that come with these accessories. I have tried to educate myself to little avail other than there may be an issue. What is the correct way to install these accessories?